Search results for "coupled tensor decomposition"

showing 3 items of 3 documents

Fast Implementation of Double-coupled Nonnegative Canonical Polyadic Decomposition

2019

Real-world data exhibiting high order/dimensionality and various couplings are linked to each other since they share some common characteristics. Coupled tensor decomposition has become a popular technique for group analysis in recent years, especially for simultaneous analysis of multi-block tensor data with common information. To address the multiblock tensor data, we propose a fast double-coupled nonnegative Canonical Polyadic Decomposition (FDC-NCPD) algorithm in this study, based on the linked CP tensor decomposition (LCPTD) model and fast Hierarchical Alternating Least Squares (Fast-HALS) algorithm. The proposed FDCNCPD algorithm enables simultaneous extraction of common components, i…

Computer sciencelinked CP tensor decomposition (LCPTD)02 engineering and technologySignal-to-noise ratiotensor decompositionConvergence (routing)0202 electrical engineering electronic engineering information engineeringDecomposition (computer science)TensorHigh orderta113konvergenssiconvergencesignal to noise ratio020206 networking & telecommunicationsbrain modelinghierarchical alternating least squares (HALS)Alternating least squaresCore (graph theory)coupled tensor decomposition020201 artificial intelligence & image processingAlgorithmsignal processing algorithmselectroencephalographymathematical modelCurse of dimensionality
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Exploring Oscillatory Dysconnectivity Networks in Major Depression During Resting State Using Coupled Tensor Decomposition

2022

Dysconnectivity of large-scale brain networks has been linked to major depression disorder (MDD) during resting state. Recent researches show that the temporal evolution of brain networks regulated by oscillations reveals novel mechanisms and neural characteristics of MDD. Our study applied a novel coupled tensor decomposition model to investigate the dysconnectivity networks characterized by spatio-temporal-spectral modes of covariation in MDD using resting electroencephalography. The phase lag index is used to calculate the functional connectivity within each time window at each frequency bin. Then, two adjacency tensors with the dimension of time frequency connectivity subject are constr…

mallintaminenmasennusBrain MappingDepressive Disorder Majoroscillatory networksDepressionRestneuraalilaskentamajor depression disorderBiomedical EngineeringBrainbrain modelingneuroverkottime-frequency analysisMagnetic Resonance Imagingtensorsmielenterveyshäiriötcoupled tensor decompositionNeural PathwaysHumansdynamic functional connectivityEEGaivotutkimusaivotelectroencephalographyIEEE Transactions on Biomedical Engineering
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Identifying Oscillatory Hyperconnectivity and Hypoconnectivity Networks in Major Depression Using Coupled Tensor Decomposition

2021

AbstractPrevious researches demonstrate that major depression disorder (MDD) is associated with widespread network dysconnectivity, and the dynamics of functional connectivity networks are important to delineate the neural mechanisms of MDD. Cortical electroencephalography (EEG) oscillations act as coordinators to connect different brain regions, and various assemblies of oscillations can form different networks to support different cognitive tasks. Studies have demonstrated that the dysconnectivity of EEG oscillatory networks is related with MDD. In this study, we investigated the oscillatory hyperconnectivity and hypoconnectivity networks in MDD under a naturalistic and continuous stimuli…

masennusElementary cognitive taskComputer scienceBiomedical EngineeringmusiikkiElectroencephalographyMusic listeningvärähtelytInternal MedicinemedicineHumansTensor decompositionEEGDepressive Disorder Majormedicine.diagnostic_testQuantitative Biology::Neurons and CognitionDepressionsignaalinkäsittelyGeneral NeuroscienceFunctional connectivityRehabilitationBrainComputer Science::Software Engineeringsignaalianalyysihermoverkot (biologia)ElectroencephalographyHyperconnectivitymajor depression disorder naturalistic music stimuli oscillatory networksMagnetic Resonance ImagingPotential biomarkersCorrelation analysiscoupled tensor decompositiondynamic functional connectivitykognitiivinen neurotiedeNeuroscienceMusicärsykkeet
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